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• TCP or UDP ? Delays building up on production for video stream

  31 janvier 2020, par Ben Beri

  I am creating a video stream from a camera with FFMPEG and nodejs stream Duplex class.

  this.ffmpegProcess = spawn('"ffmpeg"', [
  
  
  
    '-i', '-',
  
    '-loglevel', 'info',
  
  
  
    /**
  
     * MJPEG Stream
  
     */
  
  
  
    '-map', '0:v',
  
    '-c:v', 'mjpeg',
  
    '-thread_type', 'frame', // suggested for performance on StackOverflow.
  
    '-q:v', '20', // force quality of image. 2-31 when 2=best, 31=worst
  
    '-r', '25', // force framerate
  
    '-f', 'mjpeg',
  
    `-`,
  
  
  
  ], {
  
    shell: true,
  
    detached: false,
  
  });

  On local network, we are testing it with a few computers and every thing works very stable with latency of maximum 2 seconds.

  However, we have imported the service to AWS production, when we connect the first computer we have a latency of around 2 seconds, but if another client connects to the stream, they both start delaying a lot, where the latency builds up to 10+ seconds, and in addition the video is very slow, as in the motion between frames.

  Now I asked about TCP or UDP is because we are using TCP for the stream, which means that every packet that is sent is implementing the TCP syn-ack-synack protocol and sequence.

  My question is, could TCP really be causing such an issue that the delays get up to 10 seconds with very slow motion ? because on local network it works very just fine.

• Python FFMPEG Heroku|Remove audio from video with Byte to Byte. No web processes running Error on Heroku

  15 mai 2021, par samoel

  I'm trying to get a .mp4 file from an address and remove the sound from it.I also want the data sent to FFMPEG to be bytes and return the result in byte

  


  i tried different command for my code like using -movflags frag_keyframe+empty_moov.
When I run this code in Heroku and receive the log...

  


  Buildpacks on Heroku are :

  


  https://github.com/jonathanong/heroku-buildpack-ffmpeg-latest.git

  


  https://github.com/codeinteger6/heroku-buildpack-libopus.git

  


  git ://github.com/heroku/heroku-buildpack-python.git

  


  def from_bytes_to_byte(input_bytes):
    command = f"ffmpeg -f mp4 -i /dev/stdin -vcodec copy -an -f mp4 -movflags frag_keyframe+empty_moov -"
    convert_cmd = subprocess.Popen(
        shlex.split(command),
        stdin=subprocess.PIPE,
        stdout=subprocess.PIPE,
        shell=False
    )
    b = b''
    convert_cmd.stdin.write(input_bytes)
    convert_cmd.stdin.close()
    while True:
        output = convert_cmd.stdout.read()
        if len(output) > 0:
            b += output
        else:
            error_msg = convert_cmd.poll()
            if error_msg is not None:
                break
    print("----------FINISHED------------")
    return b


result=requests.get("https://file-examples-com.github.io/uploads/2017/04/file_example_MP4_480_1_5MG.mp4") #.MP4 File
byterecieved=from_bytes_to_byte(result.content)


  


  heroku logs :

  


  ffmpeg version N-57204-gc7c138e411-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 8 (Debian 8.3.0-6)
configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
libavutil      57.  0.100 / 57.  0.100
libavcodec     59.  0.100 / 59.  0.100
libavformat    59.  0.100 / 59.  0.100
libavdevice    59.  0.100 / 59.  0.100
libavfilter     8.  0.101 /  8.  0.101
libswscale      6.  0.100 /  6.  0.100
libswresample   4.  0.100 /  4.  0.100
libpostproc    56.  0.100 / 56.  0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/dev/stdin':
Metadata:
major_brand     : mp42
minor_version   : 0
compatible_brands: mp42mp41isomavc1
creation_time   : 2015-08-07T09:13:02.000000Z
Duration: 00:00:30.53, start: 0.000000, bitrate: N/A
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x270 [SAR 1:1 DAR 16:9], 301 kb/s, 30 fps, 30 tbr, 30 tbn (default)
Metadata:
creation_time   : 2015-08-07T09:13:02.000000Z
handler_name    : L-SMASH Video Handler
vendor_id       : [0][0][0][0]
encoder         : AVC Coding
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 112 kb/s (default)
Metadata:
creation_time   : 2015-08-07T09:13:02.000000Z
handler_name    : L-SMASH Audio Handler
vendor_id       : [0][0][0][0]
Output #0, mp4, to 'pipe:':
Metadata:
major_brand     : mp42
minor_version   : 0
compatible_brands: mp42mp41isomavc1
encoder         : Lavf59.0.100
Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 480x270 [SAR 1:1 DAR 16:9], q=2-31, 301 kb/s, 30 fps, 30 tbr, 15360 tbn (default)
Metadata:
creation_time   : 2015-08-07T09:13:02.000000Z
handler_name    : L-SMASH Video Handler
vendor_id       : [0][0][0][0]
encoder         : AVC Coding
Stream mapping:
**2021-05-14T21:32:09.639203+00:00** app[worker.1]: Stream #0:0 -> #0:0 (copy)
**2021-05-14T22:12:36.527864+00:00** heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=desolate-inlet-50581.herokuapp.com request_id=cc985185-6ba7-4530-95f8-f4512f465039 fwd="5.122.192.170" dyno= connect= service= status=503 bytes= protocol=https
2021-05-14T22:12:37.303089+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=desolate-inlet-50581.herokuapp.com request_id=f26b18a5-30ac-41e2-9b63-8f945b746b12 fwd="5.122.192.170" dyno= connect= service= status=503 bytes= protocol=https
2021-05-14T22:13:39.737155+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/" host=desolate-inlet-50581.herokuapp.com request_id=12a28261-d746-4067-ab4b-05d3e2e8c379 fwd="5.122.192.170" dyno= connect= service= status=503 bytes= protocol=https
2021-05-14T22:13:40.372446+00:00 heroku[router]: at=error code=H14 desc="No web processes running" method=GET path="/favicon.ico" host=desolate-inlet-50581.herokuapp.com request_id=c2e2ebc8-9fb2-4d30-8876-2fede3dfd141 fwd="5.122.192.170" dyno= connect= service= status=503 bytes= protocol=https


  


• Where to (long time) host Spring Boot Application with Data Base Backup and Linux Root Access [closed]

  22 mai 2024, par Lord Helmchen

  I developed a small application for my father. It uses Spring Boot, MySQL and FFMPEG, which I currently installed on Linux.

  


  I want to host it, deploy it automatically, have a back up and root access for FFMPEG installation.

  


  It runs smoothly locally on Windows / Linux, now I want to host it somewhere.

  


  What I would like to have :

  


  

  • Ease of deployment : I got experience in adminstration of linux root servers, but I look for something easy to integrate and maybe automatically deploy it from Github or Gitlab

  


  • Backup : I want to backup the database ideally to another service provider in case something goes wrong.

  


  • Linux : One Part of it, amongs others is to convert different audio formats using ffmpeg.
So, (I think) I need linux root access as well.

  


  • Time Horzion : I would like to make sure it still runs in ten+ years, so it should be a reliable provider where I only update the application from time to time if needed.

  


  • Money : As it is only for personal use at this moment, I don't want to invest a fortune.

  


  


  What provider and deployment pipeline would you recommend to me ?